﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace homework
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.Write("请输入第一个数");
            double Number1 = double.Parse(Console.ReadLine());
            Console.Write("请输入第二个数");
            double Number2 = double.Parse(Console.ReadLine());
            Console.WriteLine("{0}+{1}={1}",Number1, Number2, Number1 + Number2);
            Console.ReadKey();
            Console.WriteLine(Number1 + "-" + Number2 + "=" + (Number1 - Number2));
            Console.ReadKey();
            Console.WriteLine(Number1 + "*" + Number2 + "=" + (Number1 * Number2));
            Console.ReadKey();
            Console.WriteLine(Number1 + "/" + Number2 + "=" + (Number1 / Number2));
            Console.ReadKey();

        }
    }
}
